Hey Mich, no big deal at all mate. Healthy discussion is just that. Plus I've had a few beers, bourbons and a Jagiermiester with Redbull.
I know where you and even Fizzle are coming from. Ive worked for BHP for 4 odd years and know what really big companies can be like (heartless and cold). Almost all of their decisions are based on corporate priorities and financial returns. Many of the decisions they make don't sit well morally or ethically with me but I have had to be the messenger of these decisions and its never a comfortable position to be in especially when it is effecting peoples livelihoods. Many of the descisions don't even fit in with their own company corporate charter values that they tend to ram down your throat at every given opportunity.
Lin Jarvis was very influential with the decision made no doubt, but he is also the messenger who tends to be the one everyone points the fingers at and blames. The decision is also made by many other people above him in and who only consider protecting their investment important and don't really care to much about whats fair, just and deserved. Its also Lin's career and he has to show that he is capable of making and delivering the tough decisions for the good of the business, whether he agrees with them or not but personally I tend to think he doesn't want Lorenzo to test (given the choice) and favours Rossi.
Yamaha as a financial enterprise obviously don't want Lorenzo to test for Ducati at all and the decision is a fine balance of 'them protecting their corporate image along with the bad press it will bring/giving their opposition and advantage that will cost them ultimatley in results next year'.
Lorenzo is a remarkable rider, he has put everything on the line for Yamaha (riding with a broken collarbone). He no doubt has earned and deserves a dispensation to test for his future team (in my opinion and probably many others). Personally I was never a huge fan of the guy myself, until I saw him ride with a broken collar bone. I remember watching him in the pits after that round and the hairs on my neck standing up on end, I literally wanted to hug the bloke .. what an absolute champ! Proper hard .....
Yamaha is a corporation, big corporations like them always only look at the bottom line. Being the nice good guys who let Lorenzo test for Ducati and then having him beat them next year wont make the board look good. Whether the testing made any difference at all or not wont even come into it. Lin Jarvis will be thought of as weak for not being able to make the tough call.
Yamaha simply have more to lose than to gain from letting Lorenzo do any additional testing for Ducati. The fact that they are letting him test in Valencia indicates that they are very conscious of the bad press this hard line decision of theirs will attract and also the level of bad PR they are happy to wear.